Comparison

RxCalc vs IDSA Practice Guidelines

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RxCalc

This medical app provides essential pharmacokinetic calculations for healthcare professionals. It offers a fast interface and comprehensive results to streamline dosing regimen design and patient-specific adjustments for medications like vancomycin and aminoglycosides.

Highlights
  • Pharmacokinetic calculations
  • Vancomycin dosing
  • Aminoglycoside dosing
  • Post-level adjustments
  • Fast interface
  • Comprehensive results
Features
Currently charting
Read full description

RxCalc puts commonly used pharmacokinetic calculations in the palm of your hand with your iPhone or iPod Touch. The fast interface and comprehensive results help you spend less time crunching numbers and more time working on other, more important issues. This tool is designed to help pharmacists, and physicians, quickly perform the most commonly used pharmacokinetic calculations. Calculations for designing new vancomycin and aminoglycoside dosing regimens as well as patient specific post-level adjustments to current dosing regimens are included.

About

IDSA Practice Guidelines

Access and stay updated with the latest clinical guidelines from the Infectious Diseases Society of America. This app offers interactive tools, search functionality, and the ability to bookmark key information and take notes for healthcare professionals.

Highlights
  • Access clinical guidelines
  • Interactive tools
  • Search guidelines
  • Bookmark pages
  • Take notes
Features
Read full description

Access the Infectious Diseases Society of America (IDSA) guidelines app anytime, anywhere! Download the app today and stay up-to-date on IDSA clinical guidelines, interactive tools, and new resources. The app contains features to search through guidelines, bookmark important pages and take notes on key information. Visit the IDSA app for new guidelines that are released throughout the year and new updates to existing guidelines. Disclaimer: The Infectious Diseases Society of America (IDSA) provides this app (“App)” for health care professionals only, and not the general public. The App is provided for informational purposes only, and it is not intended to provide medical or treatment advice and may not be treated as such by the user. As such, this App may not be relied upon for the purposes of medical diagnosis or as a recommendation for medical care or treatment. The information on this App is not a substitute for professional medical advice, diagnosis or treatment. All content, including text, graphics, images and information, contained on or available through this App is for general information purposes only.

Screenshots

RxCalc4 screens
IDSA Practice Guidelines4 screens

Verdict

The call

The clearest difference is review sentiment: RxCalc at 53% against IDSA Practice Guidelines's 0%. RxCalc also leads on chart position (#96 vs unranked). IDSA Practice Guidelines's advantage is price (Free vs $2.99) and ratings volume (559 vs 5). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

IDSA Practice Guidelines is free to download; RxCalc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

IDSA Practice Guidelines holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: IDSA Practice Guidelines has 559 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 53% of RxCalc's written reviews are positive against 0% of IDSA Practice Guidelines's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

RxCalc ships an update every 25 months, IDSA Practice Guidelines every 7 months. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

Scorecard8 real differences · 3 level
RxCalc versus IDSA Practice Guidelines: the parameters behind the verdict, then further details
ParameterRxCalcIDSA Practice Guidelines
Price$2.99Free — better
Rating4.6 (5 ratings)4.8 (559 ratings) — better
Positive reviews53.3% of reviews — better0.0% of reviews
Number of ratings5559 — better
Update frequencyEvery 25 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#96 — better—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.012.0 — better
Further details — not scored
Size1 MB105 MB
Age rating12+17+
DeveloperRob FahrniInfectious Diseases Society of America

Customer experience

RxCalc

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews15 reviews
Positive53.3%
Neutral13.3%
Negative33.3%

IDSA Practice Guidelines

All ratings557 ratings
Positive96.9%
Neutral0.7%
Negative2.3%
Written reviews6 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

In-app purchases

None

RxCalc

No in-app purchases

None

IDSA Practice Guidelines

No in-app purchases

Questions

Is RxCalc free?
RxCalc costs $2.99, with no in-app purchases.
Is IDSA Practice Guidelines free?
IDSA Practice Guidelines is free to download, with no in-app purchases.
Which has better reviews, RxCalc or IDSA Practice Guidelines?
IDSA Practice Guidelines is rated higher. RxCalc averages 4.6 out of 5 from 5 ratings, while IDSA Practice Guidelines averages 4.8 from 559 ratings.
Do RxCalc or IDSA Practice Guidelines have ads?
Neither RxCalc nor IDSA Practice Guidelines shows ads.
Which is updated more often, RxCalc or IDSA Practice Guidelines?
RxCalc ships an update every 25 months, and IDSA Practice Guidelines every 7 months. Most recently, RxCalc was updated on September 22, 2026 and IDSA Practice Guidelines on September 23, 2026.

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